Hi Manasi, [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on next-20161117] [cannot apply to v4.9-rc6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Manasi-Navare/drm-i915-dp-Add-a-helper-function-to-return-DP-link-rate-index/20161122-073517 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-randconfig-x000-201647 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/intel_dp.c:291:12: error: 'intel_dp_link_rate_index' defined but not used [-Werror=unused-function] static int intel_dp_link_rate_index(struct intel_dp *intel_dp, ^~~~~~~~~~~~~~~~~~~~~~~~ Cyclomatic Complexity 5 include/linux/compiler.h:__read_once_size Cyclomatic Complexity 5 include/linux/compiler.h:__write_once_size Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:ffs Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:fls64 Cyclomatic Complexity 1 include/linux/log2.h:__ilog2_u64 Cyclomatic Complexity 1 include/linux/list.h:INIT_LIST_HEAD Cyclomatic Complexity 1 include/linux/err.h:ERR_PTR Cyclomatic Complexity 1 include/linux/err.h:IS_ERR Cyclomatic Complexity 3 include/linux/err.h:IS_ERR_OR_NULL Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_read Cyclomatic Complexity 1 include/asm-generic/getorder.h:__get_order Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:arch_local_save_flags Cyclomatic Complexity 1 arch/x86/include/asm/irqflags.h:arch_irqs_disabled_flags Cyclomatic Complexity 1 arch/x86/include/asm/processor.h:rep_nop Cyclomatic Complexity 1 arch/x86/include/asm/processor.h:cpu_relax Cyclomatic Complexity 1 include/linux/mutex.h:mutex_is_locked Cyclomatic Complexity 1 arch/x86/include/asm/preempt.h:preempt_count Cyclomatic Complexity 1 include/linux/jiffies.h:_msecs_to_jiffies Cyclomatic Complexity 3 include/linux/jiffies.h:msecs_to_jiffies Cyclomatic Complexity 1 include/linux/jiffies.h:_usecs_to_jiffies Cyclomatic Complexity 3 include/linux/jiffies.h:usecs_to_jiffies Cyclomatic Complexity 2 include/linux/ktime.h:ktime_divns Cyclomatic Complexity 1 include/linux/ktime.h:ktime_to_ms Cyclomatic Complexity 1 include/linux/ktime.h:ktime_ms_delta Cyclomatic Complexity 1 include/linux/timekeeping.h:ktime_get_boottime Cyclomatic Complexity 1 include/linux/workqueue.h:to_delayed_work Cyclomatic Complexity 1 include/linux/workqueue.h:__init_work Cyclomatic Complexity 1 include/linux/workqueue.h:queue_delayed_work Cyclomatic Complexity 1 include/linux/workqueue.h:schedule_delayed_work Cyclomatic Complexity 1 include/linux/kasan.h:kasan_kmalloc Cyclomatic Complexity 28 include/linux/slab.h:kmalloc_index Cyclomatic Complexity 1 include/linux/slab.h:kmem_cache_alloc_trace Cyclomatic Complexity 1 include/linux/slab.h:kmalloc_order_trace Cyclomatic Complexity 68 include/linux/slab.h:kmalloc_large Cyclomatic Complexity 5 include/linux/slab.h:kmalloc Cyclomatic Complexity 1 include/linux/slab.h:kzalloc Cyclomatic Complexity 1 include/linux/ww_mutex.h:ww_mutex_is_locked Cyclomatic Complexity 1 include/drm/drm_modeset_lock.h:drm_modeset_is_locked Cyclomatic Complexity 3 include/drm/drmP.h:drm_can_sleep Cyclomatic Complexity 1 include/drm/drm_modeset_helper_vtables.h:drm_connector_helper_add Cyclomatic Complexity 1 drivers/gpu/drm/i915/i915_reg.h:i915_mmio_reg_offset Cyclomatic Complexity 2 drivers/gpu/drm/i915/i915_drv.h:yesno Cyclomatic Complexity 2 drivers/gpu/drm/i915/i915_drv.h:onoff Cyclomatic Complexity 1 drivers/gpu/drm/i915/i915_drv.h:to_i915 Cyclomatic Complexity 1 drivers/gpu/drm/i915/i915_drv.h:intel_info Cyclomatic Complexity 1 drivers/gpu/drm/i915/i915_drv.h:msecs_to_jiffies_timeout Cyclomatic Complexity 5 drivers/gpu/drm/i915/i915_drv.h:wait_remaining_ms_from_jiffies Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_max_lane_count Cyclomatic Complexity 3 include/drm/drm_dp_helper.h:drm_dp_enhanced_frame_cap Cyclomatic Complexity 3 include/drm/drm_dp_helper.h:drm_dp_tps3_supported Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_is_branch Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_dpcd_readb Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_dpcd_writeb Cyclomatic Complexity 2 drivers/gpu/drm/i915/intel_drv.h:vlv_pipe_to_channel Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:intel_get_crtc_for_pipe Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:intel_attached_encoder Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:enc_to_dig_port Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:enc_to_intel_dp Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:dp_to_dig_port Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:intel_crtc_has_type Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:intel_wait_for_vblank Cyclomatic Complexity 2 drivers/gpu/drm/i915/intel_drv.h:intel_wait_for_vblank_if_active Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_drv.h:intel_dp_unused_lane_mask Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:is_edp Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_to_dev Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_attached_dp Cyclomatic Complexity 2 drivers/gpu/drm/i915/intel_dp.c:intel_dp_max_lane_count Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_link_required Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_max_data_rate Cyclomatic Complexity 3 drivers/gpu/drm/i915/intel_dp.c:intel_dp_unpack_aux Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:vlv_pipe_has_pp_on Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:vlv_pipe_has_vdd_on Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:vlv_pipe_any Cyclomatic Complexity 4 drivers/gpu/drm/i915/intel_dp.c:vlv_initial_pps_pipe Cyclomatic Complexity 2 drivers/gpu/drm/i915/intel_dp.c:g4x_get_aux_clock_divider Cyclomatic Complexity 3 drivers/gpu/drm/i915/intel_dp.c:ilk_get_aux_clock_divider Cyclomatic Complexity 5 drivers/gpu/drm/i915/intel_dp.c:hsw_get_aux_clock_divider Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:skl_get_aux_clock_divider Cyclomatic Complexity 5 drivers/gpu/drm/i915/intel_dp.c:g4x_get_aux_send_ctl Cyclomatic Complexity 2 drivers/gpu/drm/i915/intel_dp.c:skl_get_aux_send_ctl Cyclomatic Complexity 8 drivers/gpu/drm/i915/intel_dp.c:intel_dp_set_clock Cyclomatic Complexity 3 drivers/gpu/drm/i915/intel_dp.c:rate_to_index Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:wait_backlight_on Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:edp_wait_backlight_off Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:edp_panel_vdd_schedule_off Cyclomatic Complexity 7 drivers/gpu/drm/i915/intel_dp.c:gen4_signal_levels Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_autotest_link_training Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_autotest_video_pattern Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_autotest_phy_pattern Cyclomatic Complexity 1 drivers/gpu/drm/i915/intel_dp.c:intel_dp_init_panel_power_timestamps Cyclomatic Complexity 3 drivers/gpu/drm/i915/intel_dp.c:intel_dp_max_link_bw Cyclomatic Complexity 2 drivers/gpu/drm/i915/intel_dp.c:intel_dp_sink_rates Cyclomatic Complexity 6 drivers/gpu/drm/i915/intel_dp.c:intersect_rates Cyclomatic Complexity 6 drivers/gpu/drm/i915/intel_dp.c:ibx_digital_port_connected Cyclomatic Complexity 7 drivers/gpu/drm/i915/intel_dp.c:cpt_digital_port_connected Cyclomatic Complexity 5 drivers/gpu/drm/i915/intel_dp.c:gm45_digital_port_connected Cyclomatic Complexity 5 drivers/gpu/drm/i915/intel_dp.c:g4x_digital_port_connected Cyclomatic Complexity 3 drivers/gpu/drm/i915/intel_dp.c:skl_aux_ctl_reg vim +/intel_dp_link_rate_index +291 drivers/gpu/drm/i915/intel_dp.c 285 286 return intersect_rates(source_rates, source_len, 287 sink_rates, sink_len, 288 common_rates); 289 } 290 > 291 static int intel_dp_link_rate_index(struct intel_dp *intel_dp, 292 int *common_rates, int link_rate) 293 { 294 int common_len; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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